A condensed list of things that I've learned in aiming and Valorant:
1) Avoid the W key when possible!!
2) Always use angles to cut off maps. Enter fights with the expectation of someone being there.
3) CROSSHAIR PLACEMENT. Always maintain head-level, from the very start of the match.
4) Be constantly strafing left and right-even when holding a stationary corner. Get your practice reps in the range.